Features
- True four-wire microohmmeter for switch and circuit breaker contact resistance testing
- Wide measurement range: 0 to 20 mΩ
- High resolution of 0.1 μΩ with ±0.5% +1 μΩ accuracy
- Multiple output currents: 200 A, 150 A, 100 A, 80 A, 50 A, 30 A
- Fast selectable testing time from 10 to 60 seconds
- Over voltage, open circuit, and overheating protection functions
- Large 7-inch capacitive touch screen with 400 cd/m² brightness
- Built-in printer for convenient test reporting
- Dual data storage: local memory and USB flash drive support
- Rechargeable 9 Ah lithium battery with over 500 continuous tests per charge
- Portable handheld design with lightweight construction
Technical Specifications
| Measurement Range | 0 to 20 mΩ |
| Output Current | 200 A, 150 A, 100 A, 80 A, 50 A, 30 A |
| Accuracy | ±0.5% + 1 μΩ |
| Resolution | 0.1 μΩ |
| Display Type | 7-inch capacitive touch screen, four and a half digits |
| Test Power Supply | Constant current limit, about 2 V |
| Input Voltage | Maximum 5 V |
| Testing Time | 10 seconds to 60 seconds selectable |
| Battery Capacity | 9 Ah lithium battery |
| Number of Tests | > 500 times (fully charged, fast test mode) |
| Test Line Resistance | Less than 8 mΩ |
| Data Storage | Local memory and USB flash drive |
| Printer | Built-in thermal printer |
| Charging Parameters | DC 12.6 V, ≤ 3 A |
| Charging Time | About 3 hours |
| Power Supply | Built-in lithium battery or external charger (100 V to 240 V AC, 50 ro 60 Hz) |
| Operating Temperature | 14 °F to 122 °F (-10 °C to 50 °C) |
| Relative Humidity | ≤ 90% RH (non-condensing) |
| Dimensions | 11.81 in x 6.89 in x 3.15 in (30 cm x 17.5 cm x 8 cm) |
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